The restore CDs have limited repair options. Try unpluging anything that is USB that isn't needed and retest.
Fail? Ok try LAST KNOWN GOOD CONFIGURTION (read http://www.google.com/search?hl=en&q=LKGC )
Fail? Ok, put in a new hard disk, use the restore media and later add the old drive in as a slave drive to get your files out.
Sorry but Sony's restore CDs and their limited repair options are why I give this list.
Last night everything was fine, this morning I find my computer in a perpetual boot loop - it loads the windows screen, then goes black for a few minutes, then reboots the computer. I have tried the following:
-restart in safe mode (same prob)
-last known good configuration (same prob)
-disable auto restart after system failure (resulted in a black screen, but power light on, no error message displayed)
The system is a 2 year old Sony Vaio, running Windows XP media center
Thanks in advanced!